71 lines
No EOL
2.1 KiB
C
71 lines
No EOL
2.1 KiB
C
void spawnEnemy(u8 type){
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(void)type; // Unused parameter, kept for API compatibility
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s16 i = -1;
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for(s16 j = 0; j < ENEMY_COUNT; j++) if(!enemies[j].active && i == -1) i = j;
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if(i > -1){
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enemies[i].active = TRUE;
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enemies[i].type = type;
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enemies[i].pos.x = FIX32(64);
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enemies[i].pos.y = FIX32(64);
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enemies[i].off = 16;
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enemies[i].image = SPR_addSprite(&butterflySprite,
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getScreenX(enemies[i].pos.x, player.camera) - enemies[i].off, fix32ToInt(enemies[i].pos.y) - enemies[i].off, TILE_ATTR(gameOver ? PAL1 : PAL0, 0, 0, 0));
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enemies[i].angle = 128;
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enemies[i].speed = FIX32(1);
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enemies[i].vel.x = fix32Mul(fix16ToFix32(cosFix16(enemies[i].angle)), enemies[i].speed);
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enemies[i].vel.y = fix32Mul(fix16ToFix32(sinFix16(enemies[i].angle)), enemies[i].speed);
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}
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}
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static void boundsEnemy(u8 i){
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if(enemies[i].pos.y >= GAME_H_F - FIX32(enemies[i].off) || enemies[i].pos.y <= FIX32(enemies[i].off))
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enemies[i].vel.y *= -1;
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if(enemies[i].pos.x >= GAME_WRAP){
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enemies[i].pos.x -= GAME_WRAP;
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}
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if(enemies[i].pos.x < 0){
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enemies[i].pos.x += GAME_WRAP;
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}
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}
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static void updateEnemy(u8 i){
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boundsEnemy(i);
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enemies[i].pos.x += enemies[i].vel.x;
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enemies[i].pos.y += enemies[i].vel.y;
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s16 sx = getScreenX(enemies[i].pos.x, player.camera);
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s16 sy = fix32ToInt(enemies[i].pos.y);
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fix32 dx = getWrappedDelta(enemies[i].pos.x, player.pos.x);
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bool onScreen = (dx >= FIX32(-256) && dx <= FIX32(256));
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SPR_setVisibility(enemies[i].image, onScreen ? VISIBLE : HIDDEN);
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SPR_setPosition(enemies[i].image, sx - enemies[i].off, sy - enemies[i].off);
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if(enemies[i].clock % 45 == 0){
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struct bulletSpawner spawner = {
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.x = enemies[i].pos.x,
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.y = enemies[i].pos.y,
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.anim = 7,
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// .frame = 1,
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.speed = FIX32(2),
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.angle = random() % 128,
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};
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for(u8 j = 0; j < 8; j++){
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spawnBullet(spawner, EMPTY);
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spawner.angle += 128;
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}
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}
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enemies[i].clock++;
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if(enemies[i].clock >= CLOCK_LIMIT) enemies[i].clock = 0;
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enemyCount++;
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}
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void updateEnemies(){
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enemyCount = 0;
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for(s16 i = 0; i < ENEMY_COUNT; i++) if(enemies[i].active)
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updateEnemy(i);
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intToStr(enemyCount, debugStr, 1);
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} |